weighted_sum.cpp 1.5 KB

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  1. // (C) Copyright Eric Niebler, Olivier Gygi 2006.
  2. // Use, modification and distribution are subject to the
  3. // Boost Software License, Version 1.0. (See accompanying file
  4. // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. #include <boost/test/unit_test.hpp>
  6. #include <boost/accumulators/accumulators.hpp>
  7. #include <boost/accumulators/statistics/stats.hpp>
  8. #include <boost/accumulators/statistics/weighted_sum.hpp>
  9. #include <boost/accumulators/statistics/variates/covariate.hpp>
  10. using namespace boost;
  11. using namespace unit_test;
  12. using namespace accumulators;
  13. ///////////////////////////////////////////////////////////////////////////////
  14. // test_stat
  15. //
  16. void test_stat()
  17. {
  18. accumulator_set<int, stats<tag::weighted_sum, tag::weighted_sum_of_variates<int, tag::covariate1> >, int> acc;
  19. acc(1, weight = 2, covariate1 = 3);
  20. BOOST_CHECK_EQUAL(2, weighted_sum(acc));
  21. BOOST_CHECK_EQUAL(6, weighted_sum_of_variates(acc));
  22. acc(2, weight = 3, covariate1 = 6);
  23. BOOST_CHECK_EQUAL(8, weighted_sum(acc));
  24. BOOST_CHECK_EQUAL(24, weighted_sum_of_variates(acc));
  25. acc(4, weight = 6, covariate1 = 9);
  26. BOOST_CHECK_EQUAL(32, weighted_sum(acc));
  27. BOOST_CHECK_EQUAL(78, weighted_sum_of_variates(acc));
  28. }
  29. ///////////////////////////////////////////////////////////////////////////////
  30. // init_unit_test_suite
  31. //
  32. test_suite* init_unit_test_suite( int argc, char* argv[] )
  33. {
  34. test_suite *test = BOOST_TEST_SUITE("weighted_sum test");
  35. test->add(BOOST_TEST_CASE(&test_stat));
  36. return test;
  37. }